Multiple choice

Where are old cell organelles broken down to be recycled in the cell?

  1. Microtubules

  2. Smooth ER

  3. Mitochondria

  4. Lysosome

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Lysosomes contain digestive enzymes that break down waste materials, foreign invaders, and worn-out organelles so their components can be recycled by the cell.